Core Java - Difference Between Collection and Legacy classes

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Difference Between Collection and Legacy classes

What are the difference between Legacy classes and Collection other than Synchronized?

Total Answers and Comments: 3

Last Update: December 12, 2008 Asked by: Senthilkumarb

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January 10, 2008 10:59:07

satyd

Member Since: January 2008 Contribution: 3

RE: Difference Between Collection and Legacy classes

Legacy classes are classes which exist to provide forwards compatibility to existing programs but for which there are better alternatives.
Some are like Vector Stack HashTable. All of which are synchronized.

Use ArrayList in stead of Vector if you don't want thread safe for the collection whenever you add/remove/access objects at end and middle of collection.
Same way use HashMap in stead of HashTable

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February 11, 2008 06:18:03

sampra

Member Since: February 2008 Contribution: 278

RE: Difference Between Collection and Legacy classes

legacy class are syncronized by defult where as collection's member are not syncronized by deflt

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December 12, 2008 06:50:43

udaya.kumar

Member Since: December 2008 Contribution: 1

RE: Difference Between Collection and Legacy classes

Legacy Classes : Previously Collection Frame Work was not part of java.util package. Later some of the classes were re-engineered Known as Legacy Classes. Legacy Classes are SYNCRONIZED(Ctrlng accessibility over the resource).
Ex:Vector/Stack/Hashtable/Dictionary/Properties.

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